CN105848390A - Constant voltage and current driving design based on operational amplifier proportional and integral circuits - Google Patents
Constant voltage and current driving design based on operational amplifier proportional and integral circuits Download PDFInfo
- Publication number
- CN105848390A CN105848390A CN201610363260.4A CN201610363260A CN105848390A CN 105848390 A CN105848390 A CN 105848390A CN 201610363260 A CN201610363260 A CN 201610363260A CN 105848390 A CN105848390 A CN 105848390A
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- China
- Prior art keywords
- circuit
- operational amplifier
- integral
- amplifier
- proportional
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
Abstract
The invention discloses a constant voltage and current driving design based on operational amplifier proportional and integral circuits. The design comprises an input power and a synthetic circuit, wherein the synthetic circuit carries out constant voltage and current processing on the input power; the synthetic circuit comprises a rectifier voltage stabilizing circuit, an operational amplifier proportional circuit, an operational amplifier integral circuit, a driving circuit and a feedback circuit; the rectifier voltage stabilizing circuit transforms power frequency alternating current into stabilized direct current for the following circuits; the operational amplifier proportional circuit adopts an in-phase operational amplifier proportional circuit to amplify an input signal; the operational amplifier integral circuit is used for waveform transformation, elimination of offset voltage of an amplifying circuit and integral compensation in feedback control and is a circuit capable of making a time integral value of an output signal be proportional to a time integral value of the input signal. The input power passes through the operational amplifier proportional and integral circuits and is subjected to rectification and voltage stabilization, and the feedback circuit is added, so that the constant voltage and current driving is automatically realized according to the set output voltage or current.
Description
Technical field
The present invention relates to circuit design field, a kind of constant pressure and flow based on amplifier proportional integral circuit
Source drives design.
Background technology
In the parts of color selector, need to use fluorescent tube, the material needing screening is carried out illumination, and time long
Between when working, need stable illumination, but the power supply that the fluorescent tube of general color selector uses be exactly typically city
Electricity, better be exactly plus simple regulator rectifier circuit, it is ensured that a certain degree of constant current constant voltage electricity,
But the device of electrical type has a lot of unstable factors, output voltage electric current is caused to be not sufficiently stable, the most defeated
Entering power-supply fluctuation, electronic device is affected by material trickle in air, causes power supply unstable, thus causes lamp
Light changes, impact screening levels of precision.
Summary of the invention
It is an object of the present invention to provide a kind of simple structure, cheap, easy to use amasss based on amplifier ratio
The constant voltage/current isolator of parallel circuit drives design.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of constant voltage/current isolator based on amplifier proportional integral circuit drives design, including input power, comprehensively
Circuit；Described synthetic circuit carries out the process of constant pressure and flow to input power；
Described synthetic circuit includes regulator rectifier circuit, amplifier ratio circuit, amplifier integrating circuit, drives electricity
Road and feedback circuit；
Described regulator rectifier circuit, is transformed into galvanic current for subsequent conditioning circuit by industrial-frequency alternating current；
Described amplifier ratio circuit uses amplifier ratio circuit in the same direction, amplifies input signal；
Described amplifier integrating circuit is in waveform conversion, the elimination of amplifying circuit offset voltage and feedback control
Integral compensation, be to be the electricity making output signal proportional to the time integral value of input signal by integrating circuit
Road.
Further, described regulator rectifier circuit includes that rectification circuit and mu balanced circuit, described rectification circuit are
Bridge rectifier, described mu balanced circuit is feedback voltage stabilizing circuit.
The invention has the beneficial effects as follows:
The present invention, by input power is passed through amplifier proportional integral circuit, then by rectifying and voltage-stabilizing, adds
Feedback circuit, is automatically obtained constant pressure and flow according to the output voltage arranged or electric current and drives, it is not necessary to personnel are controlled
System, it is ensured that out-put supply is stable.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is that present invention constant voltage/current isolator based on amplifier proportional integral circuit drives design frame chart.
Fig. 2 is the circuit diagram of synthetic circuit of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can be wanted by right
The multitude of different ways limited and cover is asked to implement.
As depicted in figs. 1 and 2, the present invention discloses a kind of constant voltage/current isolator based on amplifier proportional integral circuit
Drive design, including input power, synthetic circuit；Described synthetic circuit carries out constant pressure and flow to input power
Process；
Described synthetic circuit includes regulator rectifier circuit, amplifier ratio circuit, amplifier integrating circuit, drives electricity
Road and feedback circuit；
Described regulator rectifier circuit, is transformed into galvanic current for subsequent conditioning circuit by industrial-frequency alternating current；
Described amplifier ratio circuit uses amplifier ratio circuit in the same direction, amplifies input signal；
Described amplifier integrating circuit is in waveform conversion, the elimination of amplifying circuit offset voltage and feedback control
Integral compensation, be to be the electricity making output signal proportional to the time integral value of input signal by integrating circuit
Road.
Described regulator rectifier circuit includes that rectification circuit and mu balanced circuit, described rectification circuit are bridge rectifier electricity
Road, described mu balanced circuit is feedback voltage stabilizing circuit.
Operation logic:
Input power passes through amplifier ratio circuit, amplifier integrating circuit, carries out the arrangement of circuit, is then passed through
Regulator rectifier circuit carries out rectifying and voltage-stabilizing, output, and the feedback circuit added feeds back, it is achieved constant pressure and constant
Stream drives.
Invention described above embodiment, is not intended that limiting the scope of the present invention.Any
Amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in this
Within bright claims.
Claims (2)
1. a constant voltage/current isolator based on amplifier proportional integral circuit drives design, it is characterised in that include
Input power, synthetic circuit；Described synthetic circuit carries out the process of constant pressure and flow to input power；
Described synthetic circuit includes regulator rectifier circuit, amplifier ratio circuit, amplifier integrating circuit, drives electricity
Road and feedback circuit；
Described regulator rectifier circuit, is transformed into galvanic current for subsequent conditioning circuit by industrial-frequency alternating current；
Described amplifier ratio circuit uses amplifier ratio circuit in the same direction, amplifies input signal；
Described amplifier integrating circuit is in waveform conversion, the elimination of amplifying circuit offset voltage and feedback control
Integral compensation, be to be the electricity making output signal proportional to the time integral value of input signal by integrating circuit
Road.
The most according to claim 1, constant voltage/current isolator based on amplifier proportional integral circuit drives design, its
Being characterised by, described regulator rectifier circuit includes that rectification circuit and mu balanced circuit, described rectification circuit are bridge-type
Rectification circuit, described mu balanced circuit is feedback voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363260.4A CN105848390A (en) | 2016-05-23 | 2016-05-23 | Constant voltage and current driving design based on operational amplifier proportional and integral circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363260.4A CN105848390A (en) | 2016-05-23 | 2016-05-23 | Constant voltage and current driving design based on operational amplifier proportional and integral circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105848390A true CN105848390A (en) | 2016-08-10 |
Family
ID=56595075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610363260.4A Pending CN105848390A (en) | 2016-05-23 | 2016-05-23 | Constant voltage and current driving design based on operational amplifier proportional and integral circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105848390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989715A (en) * | 2019-11-26 | 2020-04-10 | 山东航天电子技术研究所 | High-stability constant current source generating circuit and temperature measuring circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545954A (en) * | 1994-02-18 | 1996-08-13 | Asmo Co., Ltd. | Drive circuit for ultrasonic motor |
| CN102131334A (en) * | 2011-04-15 | 2011-07-20 | 苏州市纽克斯照明有限公司 | System and method for controlling lighting current of electronic ballast |
| CN103124141A (en) * | 2013-02-05 | 2013-05-29 | 四川电力科学研究院 | Special high-stability variable frequency power supply for measuring and checking power maintenance testing device |
| CN103236781A (en) * | 2013-04-21 | 2013-08-07 | 中国科学院光电技术研究所 | High-efficiency linear high and stabilized voltage power supply |
-
2016
- 2016-05-23 CN CN201610363260.4A patent/CN105848390A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545954A (en) * | 1994-02-18 | 1996-08-13 | Asmo Co., Ltd. | Drive circuit for ultrasonic motor |
| CN102131334A (en) * | 2011-04-15 | 2011-07-20 | 苏州市纽克斯照明有限公司 | System and method for controlling lighting current of electronic ballast |
| CN103124141A (en) * | 2013-02-05 | 2013-05-29 | 四川电力科学研究院 | Special high-stability variable frequency power supply for measuring and checking power maintenance testing device |
| CN103236781A (en) * | 2013-04-21 | 2013-08-07 | 中国科学院光电技术研究所 | High-efficiency linear high and stabilized voltage power supply |
Non-Patent Citations (1)
| Title |
|---|
| 金奇，邓志杰: "PID 控制原理及参数整定方法", 《重庆工学院学报(自然科学)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989715A (en) * | 2019-11-26 | 2020-04-10 | 山东航天电子技术研究所 | High-stability constant current source generating circuit and temperature measuring circuit |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |